Improved shoe-peg machine



UNITED STATES PATENT Prien..

AZRO BROWN, OF VEST WATERFORD, VERMONT.

liVlPROVED SHOE-PEG MACHBNE.

Specification forming part of Letters Patent No. 22,061, dated November16, 1858.

To @ZZ whom, it may concern:

Be it known that I, AZRO BROWN, of lV est Vaterford, in the county ofCaledonia and State of Vermont, have invented a new and usefulImprovement in Machines for Manufacturing Slioe-Pegsg and l do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying drawings, making partof this specification.

Figure l is a front elevation of the improved machine. Fig. l isalongitudinal section of the same. Fig. 3 is a transverse section of thesame at the line l 2 of Fig. l. Fig. 4 is a horizontal section of thesame at the line 3 at of Fig. l.

Similar letters in the iigures refer to corresponding parts.

The nature of this invention and improvement consists in, first,cut-ting from the bolt or block of wood thin strips corresponding insize with the length and thickness of the pegs to be formed and forcingthem into radial slots formed in an intermittent rotating plate arrangedbetween other plates or heads, on the faces of which next each other areformed projections, whose inner edges are made eccentric, helical, orspiral with the center, so as to operate upon the outer ends of thestrips of Wood above and below the radial slots in the intermittentrotating plate, and thereby force the whole series of strips of wood inthe said slots toward the center at every intermittent motion of thesaid rotating plate the required distance to enable a' peg to be cutfrom the end of each and all of them at every depression of a circularrevolving knife, the required taper being previously given the pegs bystationary revolving knives, and the several operations necessary tothis end being performed by asimple, compact, and novel series of partsarranged within a suitable frame. I

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

The frame A is of a rectangular form, and is made of suitable size,strength, and material to contain and support the several parts of themachine. Longitudinally within this frameis arranged a horizontal shaftD, turning in boxes secured to cross-pieces of the same, on which areformed or secured cranks C, to which are attached the lower ends ofpitman-rods D, vattached at their upper ends to the uprights E of a castframe E, which slide in grooves formed in uprights of frame F, erectedon top of the main frame A. This cast frame E consists of the twouprights E', connected together by an arched and horizontally-extendedcross-piece, to the apex or upper portion of the arched part of which issecured the upper end of a vertical shaft G, which extends downward'below the base, from which said arched part is sprung, and is securedat its lower end toacylindrical knife H, above which is arrangedacircular plate I, projecting some distance beyond the periphery of thecylindrical knife H, and having secured in notches or spaces in itsouter edge or periphery curved cutters J, which curve ,downward outsidethe circular knife H to within a short distance of the cutting-edge ofthe said knife H, and are made and shaped at their cutting ends in orderto give the required taper to the pegs to be cut, as will be hereinafterstated. This circular plate I is secured to the lower end of a tube K,surrounding the vertical shaft G and having a band wheel or pulley Lsecured to its upper end, around which is passed a horizontal bandextending also around a larger horizontal pulley M, secured on avertical shaft N, turning in suitable boxes in the frames A F and havinga cog-wheel or pinion secured near its lower end, which gears with cogsO, formed on the face of a drum P, secured on the end of the horizontallongitudinal shaft E. Motion is communicated to this drum P by africtionwheel Q, secured on a horizontal shaft R,

on the opposite end of which is secured a4 band-wheel S for receivingthe band from the motive power which drives the machine. One end of thisshaft R is suspended in a box secured on the end of a treadle-lever T,so as to enable the friction wheel or pulley Q to be forced against theperiphery of the drum P with sufficient force to give motion to thesame. A groove U is formed in the periphery of this drum P, near theedge of the same, which extends parallel to the said edges a little morethan two-thirds of its whole circumference, and from the termina` tionsof this parallel portion in a diagonal or zigzag course toward theopposite edge, somewhat after the manner and form of two cyma reversasand cyma rectas joined, and in this groove U is inserted the lower endof a vertical bar V, attached at its upper end to near the end of ahorizontal bar V', to the ends of which is secured a cross -head V2,having grooved friction-wheels on its ends, which friction-wheels movein slots or between bars V3, secured on top ot' the frame A, for thepurpose of guiding said bars and cross-heads in their longitudinaltraversing movements. The horizontal barVis made about the samethickness of the pegs to be out, and its opposite end passes between thefaces of two vertical longitudinal knives W, secured parallel to eachother on top of the frame A by having their thickened edges embedded andfastened in a slot formed in the same and situated the same distanceapart as the intended thickness of the pegs to be cut. In front of thecutting-edges of these knives N and on a line with the same is arrangeda table X, having vertical rods X secured to its ends, which rods passthrough openings in the top of the frame and a horizontal plank a shortdistance below, and are surrounded by spiral springs X2 betweenthe topof the frame and the said plank in such a manner as to enable the tableto be depressed when desired. A hinged right-angled gage-bar Y isarranged on the opposite or rear side ot these knives WV, the forkedends of which bars are jointed to upright ears rising from the top ot'the frame A, while the gage portion rests in such relation and proximityto the cutting-edge of the rear knife W as to properly gage the bolt orblock of wood to the two knives to properly cut the strip from the sameof the required thickness.

Immediately above the edges of the knives W is arranged a longitudinalfollower-block Z, secured to the lower ends of vertical parallel rods a,passing through the horizontal portions ot' the cast trame andsurrounded between the upper horizontal portions by spiral springs b,the upper ends of which rest against the upper horizontal portion, whiletheir lower ends are secured to projectienson the rods a, or are securedto the said rods in any convenient manner, so as to enable thefollower-block Z to yield when it is brought down upon the bolt or blockof wood by the descent of the lcast-frames, the extent of its yieldingmovement being regulated by adjusting-nuts c below one of the horizontalportions ot' the cast frame turning on screwthreads formed on theperipheries of therods a below the spiral springs b.

On top of the frame A and immediately below the arched portion of thecast frame E and next the ends of the knives XV is secured a circularplate d, having a rim atits periphery, on the upper edge of which issecured by screws a circular plate e. Vithin the space between theseplates d eis placed another circular plate f, having a circular openingin its center corresponding in size with the cylindrical knife andhaving a series of radial slots g in it extending from the centeropening to the periphery and provided on its lower surface next theperiphery with an increased thickness ot` body of metal, so as to form acircular shoulder or broad rim below the slotted portion, which tits ina corresponding circular depression or space in the upper surface of thelower plate d, an additional circular depression or gutter being formedin the said plate d next the rim for the reception of ratchet-notches 7Lon the under surface next the outer peripheryof the shoulder or rimportion of the slotted plate f. A segmental slot i is formed in thegutter or outer depression of the plate d, through which passes the endof a pawl 7c, jointed near its opposite end by a pin to the upper end ofan oscillating lever Z, Whose lower end is connected by a rod in to nearthe lower end of the pitman-rod. The end of the pawl 7c which projectsbeyond the oscillating leverZ is attached to the upper end of a spiralspring n, the opposite lower end of which is attached to the lower partof the oscillating lever Z for the purpose ot forcing the bent end ofthe pawl 7o against the ratchet-notches of the slotted plate f, andthereby enabling it to engage with said notches during one of itsmovements and to slip over the same upon its return movement, and tothus give an intermittent progressive motion to the said slotted platef.

Immediately above the slotted plate f and between it and the rim of theplate d and the vupper plate e, with which it corresponds in forni onits outer edge and periphery, is secured a plate 0, whose inner edge ismade of a helical or spiral form commencing at the periphery of thespace in the upper plate c just outside where the cylindrical knife Wpasses the same and extending entirely around the center in an eccentriccourse with the sameand terminating at a radial slot p, formed in theplate o immediately opposite a corresponding narrow slot in the rim ofthe wheel or casting d, which is situated next the ends of the knives WVand in continuation of the space between the same. On the upper surfaceof the plate d is formed a raised body, of metal, or ridge, whose inneredge q is situated immediately below the corresponding helical, spiral,or eccentric edge of the plate o, in order to bear against the ends ofthe strips of wood from which the pegs are formed as they arc revolvedin the slots in the plate f, the eccentric edge of the said revised partor ridge q on the plate d commencing at a point immediately below thepoint where the corresponding eccentric edge of the plate 0 commences,and gradually enlarging in its course round the center parallel with thesaid edge of the plate 0,just mentioned,until it intersects theperiphery of the depression in the plate CZ inside the outer gutter ordepression.

The operation of this machine is as follows: The bolt or block fromwhich the pegs are to be formed being placed on the table X, and by handor other suitable means forced against nacer e the gage-bar Y next toand slightly above the cutting-edge of the rear knife W', motion isVcommunicated to the grooved drum P through the application of anysuitable motive power to the band-wheel S on the friction-pulleyshaft R.This causes the cast frame E to be moved up and down at everyrevolution, and during this one and every revolution of the said drum Pa strip of wood of the required thickness of the pegs to be cut from thebolt or block and a series of pegs corresponding in number to the numberof slots in the slotted plate or wheelf, to bc cut from the ends of thestrips previously forced in said slots, and the said plate or wheel f tobe rotated the extent of the distance apart of the slots, and the saidstrip cut from the block oi bolt to be forced into the slot in the plateor Wheel f, in which a previously-placed strip has just been cut intopegs in the following manner: IVe will suppose the cast frame E to beraised to the position represented in Fig. 2. and the edge of the blockor bolt to be brought in contact with the edge of the gage Y. Therevolution of the horizontal shaft B brings the c ast frame E down byt-he action of the cranks, and with it of course the follower Z, whichpresses the block or bolt down with the table X, which yields for thispurpose, and causes a strip to be cutl from its end by the front knifeand deposited in the space between the twoknivesW. Duringthisdescendingmoveme'nt o'f the cast frame E the revolving cylindrical knife Il iscaused to cut off a peg from each of the ends of the strips of wood inthe slots of the plate or wheel f, and the angular cutters J on itssides cut out a correspondingshaped channel in the upper edge of thewhole series of strips at the required distance from the ends of thesaine to give the required taper to the peg to becut off next insuccession. After a series of pegs have thus been cutoff by thecylindrical knife and, discharged through the space or opening in thecenter of the plate or wheel e the cast frame E, with its attachments,rises, and the zigzag or curved portion of the groove i), having reachedin its revolution the upright bar V, whose lower end is inserted in thesame, operates on said bar V and gives it and the end of the horizontalbar V, to which it is secured, a traversing movement between the knivesWV and conveys the strip previously cut off and deposited in the spacesbetween them through the slot in the rim of the plate CZ and into theslot in the Wheel or plate f, with which it communicates, a tapering orsharpened edge corresponding with the desired sharpness to be given thepegs being given it in its passage by the lower cutting V-shaped edgesof an inclined adjustable stationary cutter y, secured by a setscrew e'on top of the plate. Immediately after this strip of wood is forced intothe slot and before the cast frame E reaches the full extent of itsupward movement, the springpawl acts against the notch (with which it isin contact) of the ratchet-notches on the slotted wheel or plate fandgives it the required intermittent motion to bring the next slot insuccession opposite to and in immediate connection with the slot in therim of the plate e. This motion of the slotted plate or wheel f causesthe strips of wood in its slots to be revolved with it of course, and astheir ends are moved past the eccentric helical or spiral edges of theplate and raised body or ridge of the plate they are forced toward thecenter, so as to cause their opposite ends, from which the pegs are tobe cut, to project beyond the inner ends of the slots sufficiently farto enable the cylindrical knife H in its descent to cut off the seriesof pegs, as before described. In this manner the operation is continued,the slots in the wheel or plate f being filled and constantlyreplenished with fresh strips of wood from the block or bolt as the pegsare cut off therefrom by the action of the traversing bar V.

Vhat I claim as new, and desire to secure by Letters Patent, is

l. The combination and arrangement of the radial slotted plate f,eccentric helical or spiral edged plate, between which and the lowerplate e it is confined, said lower plate e having depressions andgutters in itsupper surface for receiving corresponding parts formed onthe lower surface of the slotted plate f, and a raised or ridged portionnearer its center, whose inner edge corresponds with the eccentriccurvature of the edge of the plate, the said slotted plate fand theother parts mentioned being arranged and operated substantially in themanner and for the purpose herein set forth.

2. Giving an intermittent progressive motion to the slotted plate f bythe combination of the ratchet-notches on its under surface, spring-pawlK, and oscillating lever l, attached by a connecting-rod m to thepitman-rod, as before described.

3. Forcing or conveying the strips of wood from which the pegs areformed after being cut from the block or bolt by means of thecombination and arrangement of the travers` ing bars V V guided bywheels on the end of the cross-head at the angle where they areconnected, curved groove U in the drum P, and knives I/V, between whichthe strip as first deposited and subsequently conveyed through the slotin the rim of the plate or rim e and under the V-shaped cutter V,substantially as herein set forth.

4. The combination of the cylindrical knife H and cutters J, asdescribed.

AZRO BROIVN.' Witnesses:

JOHN BROWN, Jr., TAURENS CHAMBERLIN.

